Sole-plate for cylinders.



Iv'- yr@ T. L. EGNOR.

SOLE PLATE FOR GYLINDERS. APPLIUATION FILED AP'R.17,191z.

v 1,047,771. Patented Dec. 17,1912.

2 SHEETS-SHEET 1. 77-51- r f un E "Ww T. L. EQNOR. soLE PLATE fonoYLmDEBs.

APPLICATION FILEDAPR. 17,1912'. A 1,047,771. Patented Dec. 17, 1912.

2 SHEETS-SHEET 2.

i vTo alliwhom t may concern.' f .y

\ Be it known that I, THEoDoRE L. EGNoR, acitizen 'of the United States,residing iny f UNITEDsrMES'ATENT0Fl THEODORE v L. EGNOR,

or annsnYcrrY, NEW JERsEY, AssIGNoR ory ONE-HALF 'ro GLENN s.WILLIAMSON, or NEW YORK, N. Y.

SOLE-PLATE non cYLrNLERs.

y n Y Specification of Lettersl'atent. i Patented 1130.17, 1912,.Application led Aprilvl, 1912. ySerial No.y 691,339.

Jersey City, county of Hudson, State of New Jersey, have inventedcertain new and fuseful Improvements in Sole-Plates for iication.

Cylinders, of which the V following is a speci- This invention relatesto means for carrying andr guiding the` sliding Vclips or screwoperatedblocks which clamp the stereotype plateson the form cylinders `of rotaryprinting-presses.

.e The object is to reduce thelabor kand eX- pense of` repairing theform cylinders, to eliminatea large amount of time loss from stoppagesand breakdowns of the press, to

make it possible to correct wear the guides on which the clips slide bythe simple interchange of removable and replaceable parts kwithoutremoving the cylinder from the press or requiring the :substitution yofa difi f erent,`v clip, and to prolong very materially vthe life vof theform cylinders. s v Heretofore the olipshave been mounted directlyv onthe cylinders, which are of cast iron. kThe port-ions ofthejcylindersslidably receiving the clipsv are susceptible to wear,sothat the clips become loose in a coniparatively short time. y'Thislooseness'o-f the clips in their guides frequently permits thestereotype plates tov work loose kduring ythe running of the press,'necessitating loss of time in stopping thek press yto tighten the clipsor resulting in damage or a breakdown,

as when a plate becomes disengaged and gets between the cylinders.Whenthe wear proceeds toja certain-'extent itis necessary to i, yremovethe cylinder and re-mill its guide 4o Y i f i be used to correspondtothe greaterd1s- Ntance between they guides.- In time, of course, it isnecessary to' discard the cylinder portions, and then ya larger size ofclip must becausethere is a ylimit tothe extent `to which its guideportions-canbe cut back; andnaturally any'material breaking of any oneof the integral guidesl on a cylinder. hastens the date at which thewhole cylinder must be discarded, rormay at once put itV permanently outof commission.

f In accordance` with lthe present inyention removablek and replaceablesole plates are mounted in seats in the formy cylinder over` .recesses`therein, and these soleplatesrare provided each with a slot which isenlarged at one end for thefentrance of ak clip and rWithinternal guidesforming the sides of the narrower port-ion, ofthe slot, these r guidesslidably receiving the clip whichu is f afforded clearance lin therecess in the cylinder. vThe two guides for `each, clip are thusremovable and 'replaceable by merely ,removing the so-le plate andsubstituting an# other, and' are 'maintained injpermanently fixedrelation.' `fThel-iite of the cylinder is unaffected by the wear of theguides, and the replacement of one for more of its sole plates., doesno-t necessitate the removal of the cylinder from the press. The soleplates are of different material from the cast iron cylinders, namely,steel, and consequently wear proceeds more slowly than heretofore, w sothat there are fewer occasions for stopping the press totighten theclips;l and when `wear must be corrected it is merely a matter ofreplacing a quickly removable and attachable sole plate, as againsttaking out the whole cylinder` and puttingy in a new one and thenre-milling the old cylinder, as herei toforef` Furthermore, itis notnecessary to change the size of the clips on changing the vsole platesto secure fresh guide surfaces,

of a sole plate embodyingthe invent-ion attached to a form cylinder, themajor part yor which is broken away; Fig. 2 is a side view of theportionof the cylinder shown in Fig.

1, the soleplate being removed; Figx is a cross-sectionalview taken atright vangles to eoL the axis ofthe cylinder, showing the solekplatea;fportion of the cylinder, and the screw for operating theclip'in section, the f clip and the screws holding the sole plate on thecylinder being in elevation; Figs. 4 and 5 are cross-sectionsfthroughthe rsole plate taken at ydifferent pointsyFig. V6 is a side view of aform cylinder provided with a set of sole plates, stereotype platesbeing shown mounted on one half of the cylinder;-

Fig. 7k is ya section on'the line 7-7 of Fig. 6, on anenlarged scale;and Fig; 8 isa crosssection;through` thej ormfcylinder and a circularseries of the sole plates, the clips and the stereotype plates heldthereby being shown in elevation.

The numeral 10 indicates a form cylinder of cast iron, which is providedperipherally at suitable points with recesses 11, which are elongated inthe direction of the axis ofthe cylinder, and are bordered by narrowseats 12 depressed below the surface of the cylinder. The sole platesare indicated at 13. Each consists of an elongated plate, preferably ofsteel, occupying a seat 12, and preferably of the same outline as thebounding wall of the seat. The surface of the seat may be fiat, and thebottom of the sole plate may be flat to correspond therewith. The faceof the sole plate is preferably transversely curved to correspond to thecurvature of the form cylinder. The sole plate has an elongated slotformed in its interior, this slot preferably occupying the major or aconsiderable part of the area of the plate. This slothas an enlargementor head 14 at one end, and the internal edges 15 of the plate formingthe sides of the narrower portion 16 of the slot constitute guides onwhich the clip 17 slides. As shown in Fig. 3 these guide portions 15overhang the recess 11.

The form of the guide edges 15 may be varied in accordance with theformation of the clip, which has notches in its opposite sides receivingand accurately fitting the guides. The laterally projecting portions 18of the clips are disposed below the guides 15, and prevent the clipsfrom coming out. The recess 11 in the cylinder below the guides 15 onthe sole plate aords a free space for the movement of the lower part ofthe clip.

Suitable means are provided for securing the sole plates to the cylinderand for permitting their ready removal and replacement. This means maybe varied, but preferably the sole plate is provided with countersunkscrew holes 19 for the reception of screws 20, which have threadedengagement with tapped openings 21 in the seats 12. These screws 20 arecovered by the stereotype plates, indicated at 22, so that dislodgmentof these screws is guarded against.

The form cylinder may be provided with an annular middle stop or rib 23,undercut at both sides, and with two opposite longitudinal ribs or stops24. The head 25 of the clip 17 is also undercut at both sides. Thus, themiddle stereotype plates 22 are clamped endwise against the xed rib 23,and the end plates 22 are clamped against the heads 25l of theintermediate clips 17, the edges of the plates being suitably beveled.The clips 17 are operated by screws 26, which have threaded engagementin the clips and bear at their ends against the end walls of therecesses 11. Lock-nuts 27 are provided.

the stereotype plates, by means of the screws 26. It will be seen thatit will be a simple matter to remove and replace the sole plates whilethe form cylinder remains in the press.

lhatis claimed as new is:

1. The combination with a form cylinder for carrying stereotype forms,said cylinder having a peripheral recess, of a removable and replaceablesole plate of harder material than the cylinder, the face of said platebeing transversely curved to correspond to the curvature of the formcylinder, said plate having an elongated slot over said recess, whichslot has an enlarged entrance and internal guide edges on the plateforming the sides of its narrower portion, and means for (securing saidplate removably to said cylin- 2. The combination of a form cylinder forcarrying stereotype forms, said cylinder having a peripheral recesselongated in the direction of the cylinder axis and a seat borderingsaid recess and depressed below the surface of the cylinder, anelongated sole plate of harder material than said cylinder removablysecured to said seat, the face of said plate being transversely curvedto correspond to the curvature of the form cylinder and having anelongated slot formed in its interior and located over said recess, anda stereotype plate-holding clip carried by said sole plate, said slot inthe sole plate having an enlarged head at one end for the entrance ofsaid clip and the portions of the sole plate forming the sides of thenarrower portion of the slot constituting guides overhanging the recessin the cylinder.

3. A removable and replaceable sole plate for holding and guiding astereotype plate clip on a form cylinder of a printing-press, t-he samecomprising an elongated plate curved transversely on its outer surfaceand provided with means for securing to the cylinder, said plate havingan elongated slot formed in its interior with an enlarged entrance atone end, the face of said plate being transversely curved to correspondto the curvature of the form cylinder, said plate having a at base, theinternal edges of the plate forming the sides of the narrower porn tionof the slot being formed as guides for the aforesaid clip.

4. The combination with a form cylinder for carrying stereotype forms,saidcylinder having recesses in its periphery elongated in the directionof its axis and depressed seats bordering said recesses, of guides ofharder material than said cylinder, the face of said guides beingtransversely curved to correspond to the curvature of the form cylinder,said guides having a flat base and removably v v secured to saidseatsand projecting over said recesses to form the sides ofslotsreceivlng ying carried by said guides. l

stereotype plateholding clips, said clips be- 5. The combination withaform Cylinder for carrying stereotype forms,said cylinder equal sized,slotted, -sole plates each of harder materialfthan said cylinder, theface of said plates being transversely curvedto f correspond to thecurvature ofvtheform cyl- Copies of this patent may be obtained forinder and screws with their heads below the surface of said cylinderforremoyably securing said plates to said cylinder, said n'` platesprojecting over said recesses to form the sides of slots to receivestereotype plateholding clips, said clips being carried lby said plates.

In testimony whereof, Ihave signed my name to this speciiication, in thepresence of n two subscribing witnesses.

THEODORE L. EGNOR.

Witnesses: n W. F. BIssING,

LOUELLA F. LITTLE.

five cents each, by addressing the Commissioner of Patents, Washington,D. C.

